ADG731

PRODUCTION

ADG731

32-Channel, Serially Controlled 3.5 Ω 1.8 V to 5.5 V, ±2.5 V, Analog Multiplexer

PRODUCTION

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Part Models 4

1ku List Price Starting From $6.20

Features

3-Wire SPI Compatible Serial Interface
1.8 V to 5.5 V Single Supply
±2.5 V Dual-Supply Operation
4 Ω On Resistance
0.5 Ω On Resistance Flatness

7 mm × 7 mm 48-Lead Chip Scale Package (LFCSP) or 48-Lead TQFP Package
Rail-to-Rail Operation
Power-On Reset
See data sheet for additional feature

Additional Details

The ADG731 / ADG725 are monolithic, CMOS, 32-channel/dual 16-channel analog multiplexers with a serially controlled 3-wire interface. The ADG731 switches one of 32 inputs (S1–S32) to a common output, D. The ADG725 can be configured as a dual mux switching one of 16 inputs to one output, or a differential mux switching one of 16 inputs to a differential output.

These mulitplexers utilize a 3-wire serial interface that is compatible with SPI^®, QSPI^™, MICROWIRE^™, and some DSP interface standards. On power-up, the Internal Shift Register contains all zeros and all switches are in the OFF state.

These multiplexers are designed on an enhanced submicron process that provides low power dissipation yet gives high switching speed with very low on resistance and leakage currents. They operate from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply, making them ideally suited to a variety of applications. On resistance is in the region of a few ohms, is closely matched between switches, and is very flat over the full signal range.

These parts can operate equally well as either multiplexers or demultiplexers and have an input signal range that extends to the supplies. In the OFF condition, signal levels up to the supplies are blocked. All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels.

The ADG731 and ADG725 are serially controlled 32-channel, and dual/differential 16-channel multiplexers, respectively. They are available in either a 48-lead LFCSP or TQFP package.

PRODUCT HIGHLIGHTS

3-Wire Serial Interface.
1.8 V to 5.5 V Single-Supply or ±2.5 V Dual-Supply Operation. These parts are specified and guaranteed with 5 V ± 10%, 3 V ± 10% single-supply, and ± 2.5 V ±10% dual-supply rails.
On Resistance of 4 W.
Guaranteed Break-Before-Make Switching Action.
7 mm × 7 mm 48-Lead Chip Scale Package (LFCSP) or
48-Lead TQFP Package.

APPLICATIONS

Optical Applications
Data Acquisition Systems
Communication Systems
Relay Replacement
Audio and Video Switching
Battery-Powered Systems
Medical Instrumentation
Automatic Test Equipment

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 4

1ku List Price Starting From $6.20

Documentation

Technical Documents 4

ADG725/ADG731: 16-/32-Channel, Serially Controlled 4 Ω 1.8 V to 5.5 V, ±2.5 V, Analog Multiplexers Data Sheet (Rev.B) 09/11/2015

Data-acquisition system uses fault protection 04/15/2004

Enhanced Multiplexing for MEMS Optical Cross Connects 08/01/2003

Temperature monitor measures three thermal zones 12/11/2003

Reference Materials 1

Switches and Multiplexers Product Selection Guide 05/09/2008

Design Resources 4

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADG731BCPZ	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADG731BCPZ-REEL	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADG731BCPZ-REEL7	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADG731BSUZ	48-Lead TQFP (7mm x 7mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys